Linear actuator



FIG. 1 is a top, rear, and left side perspective view a linear actuator showing my new design;

FIG. 2 is a bottom, front, and left side perspective view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a front end elevational view thereof; and,

FIG. 8 is a rear end elevational view thereof. 

CLAIM The ornamental design for a linear actuator, as shown and described. 